Welcome to FLEX, the TNG interactive program to submit and modify observing blocks of service/queuing and ToO programs.
In order to set your observing blocks, you have to create a few simple text (ASCII) files, containing the following information:

Instructions on how to create these files can be retrieved from the Menu by clicking the menu Man button in correspondence to the section you are interested in.
In order to start the submission or modification of your blocks you first have to login the account corresponding to your program (click the Go button in the Login Menu box). For instruction on how to obtain username and password for your program, click the Man button in the Your Account menu box.
Should you have any doubt concerning Flex, please contact the FLEX staff.